I bought and installed the Bridgestone Potenza RF and it is a tight fit to even get it on the bike, had to remove the left side muffler and fiddle with it trying to get it past the fender and the brake rotor. Went and rode it for awhile yesterday and other than following every groove in the road you could not tell it had a CT on it. I was told by another member that the air pressure is the key to finding the "sweet spot" with a run flat tire. I'm currently running 42 psi and was told to try 28-30, anybody want to confirm that??